1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory. Do not post "I have the same issue" in an existing thread with a game crash, always open your own thread. Do not PM developers and staff members for personal troubleshooting and support.
  2. As part of our continuous maintenance and improvements to Assetto Corsa Competizione we will be releasing small updates on a regular basis during the esports season which might not go through the usual announcement process detailing the changes until a later version update where these changes will be listed retrospectively.
  3. If ACC doesn't start with an error or the executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, run a Steam integrity check or reinstall the game altogether. Make sure you add the User/Documents/Assetto Corsa Competizione folder to your antivirus/Defender exceptions and exclude it from any file sharing app (GDrive, OneDrive or Dropbox)! The Corsair iCue software is also known to conflict with Input Device initialization, if the game does not start up and you have such devices, please try disabling the iCue software and try again. [file:unknown] [line: 95] secure crt: invalid error is a sign of antivirus interference, while [Pak chunk signing mismatch on chunk] indicates a corrupted installation that requires game file verification.
  4. When reporting an issue with saved games, please always zip and attach your entire User/Documents/Assetto Corsa Competizione/Savegame folder, along with the logs and the crash folder (when reporting related to a crash).
ACC general support Note about silent updates Startup troubleshooting ACC savegame reports

Physics Bugs & Issues

Discussions related to physics issues and feedback

Announcement Title Start Date
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  1. pankykapus
    Locked Sticky

    READ HERE How to Use the Support Forums and Report Issues

    pankykapus, Sep 12, 2018
    Replies:
    1
    Views:
    31,641
    pankykapus
    pankykapus
    Jan 3, 2021
  2. AC Support
    Locked Sticky

    This thread, started by AC Support, has been deleted. Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.
    View
  3. paulieGTR
    Locked Sticky

    Before Posting - Read the FAQs and Use Search Function

    paulieGTR, Nov 10, 2013
    Replies:
    1
    Views:
    84,470
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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WORKAROUND CRITICAL BUG ISSUE
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  1. DaRenss

    AS DESIGNED 0 kph/mph bug

    DaRenss, Aug 31, 2016
    Replies:
    3
    Views:
    214
    Stereo
    Stereo
    Sep 2, 2016
  2. PADIN

    AS DESIGNED 2 wheels and the game sends me boxes... bug?

    PADIN, Apr 3, 2015
    Replies:
    12
    Views:
    546
    lionbest
    lionbest
    Dec 24, 2015
  3. Epocx

    AS DESIGNED 458 downforce (wrong forum... physics bug)

    Epocx, Mar 25, 2015
    Replies:
    1
    Views:
    112
    mclarenf1papa
    mclarenf1papa
    Mar 25, 2015
  4. VeRDe

    AS DESIGNED 599xx medium compound "could" last more than hard!

    VeRDe, Jun 7, 2015 ... 2
    Replies:
    23
    Views:
    444
    ChrisR
    ChrisR
    Jun 8, 2015
  5. JamesYZN

    AS DESIGNED 98t gearbox - 5-speed or 6-speed?

    JamesYZN, Jul 19, 2014
    Replies:
    7
    Views:
    309
    Mauro
    Mauro
    Jul 20, 2014
  6. tombax338
    Locked

    AS DESIGNED ABS is not turning off

    tombax338, Nov 22, 2013
    Replies:
    3
    Views:
    206
    Aristotelis
    Aristotelis
    Nov 22, 2013
  7. fuzzifikation

    AS DESIGNED ABS off in launcher, but still present on track

    fuzzifikation, May 10, 2014
    Replies:
    7
    Views:
    394
    keith dixon
    keith dixon
    May 12, 2014
  8. JakeDunc

    AS DESIGNED ABS on by default in hotlap mode (tried with the 458) even though settings are set to PRO

    JakeDunc, Feb 22, 2014
    Replies:
    11
    Views:
    325
    Paps
    Paps
    Mar 1, 2014
  9. Nicolaus 2

    AS DESIGNED Aero-Balance Lotus T125S1

    Nicolaus 2, Jun 14, 2014
    Replies:
    8
    Views:
    444
    Albert McSaltens
    Albert McSaltens
    Jun 19, 2014
  10. Topuz

    AS DESIGNED AI doesn't generate brake heat any more

    Topuz, Sep 21, 2017
    Replies:
    0
    Views:
    112
    Topuz
    Topuz
    Sep 21, 2017
  11. Munckmb2

    AS DESIGNED AI not using ABS

    Munckmb2, Jan 19, 2014
    Replies:
    8
    Views:
    385
    earlyapex
    earlyapex
    Jan 1, 2015
  12. garyjpaterson

    AS DESIGNED AI stuck at 90CP when diff is 100% locked

    garyjpaterson, Apr 23, 2017
    Replies:
    10
    Views:
    327
    aphidgod
    aphidgod
    May 18, 2017
  13. Jadonyx

    AS DESIGNED Alfa Giulietta semislicks missing

    Jadonyx, Jul 20, 2016
    Replies:
    11
    Views:
    325
    bk81
    bk81
    Jan 1, 2017
  14. Gordz

    AS DESIGNED Alfa romeo rear wheels fold under the car

    Gordz, Nov 25, 2014
    Replies:
    10
    Views:
    383
    bondyboy
    bondyboy
    Feb 7, 2015
  15. Kupolemoogle

    AS DESIGNED Audi sport quattro ffb

    Kupolemoogle, Aug 1, 2015
    Replies:
    9
    Views:
    443
    JvM
    JvM
    Aug 6, 2015
  16. Schnipp

    AS DESIGNED Auto-Clutch active in rare situation

    Schnipp, Nov 25, 2016
    Replies:
    5
    Views:
    281
    Quffy
    Quffy
    Feb 25, 2017
  17. poet

    AS DESIGNED Automatic gears too slow?

    poet, Aug 17, 2014
    Replies:
    6
    Views:
    235
    Blame
    Blame
    Aug 17, 2014
  18. Albert McSaltens
    Locked

    AS DESIGNED Automatic RE start engine

    Albert McSaltens, Apr 30, 2014
    Replies:
    4
    Views:
    205
    ears1991
    ears1991
    Apr 30, 2014
  19. S_Denis
    Locked

    AS DESIGNED Bad suspension from kunos

    S_Denis, Dec 21, 2014
    Replies:
    7
    Views:
    307
    AC Support
    AC Support
    Dec 21, 2014
  20. Sean

    AS DESIGNED BMW E92 Drift not remembering Brake balance setting when session restarts

    Sean, Jul 13, 2016
    Replies:
    1
    Views:
    51
    Thomas Gocke
    Thomas Gocke
    Jul 14, 2016
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